Here are a few reasons...add on... 01. Not getting enough at home. 02. Relationship is getting boring. 03. Because they can get away with it. 04. Don't feel appreciated. 05. Curious about what they could be missing. 06. To reassure themselves. 07. Greedy. 08. To "Get Away" from Arguments, etc 09. Not in-love anymore and too comfortable to get out of the relationship. 10. Revenge. What would other reasons be?